"Most intelligent" ? - I wasn't aware definitive tests on that had been carried out.
Many primates, porpoises, whales, parrots, ravens and crows are all quite intelligent.
Yes. Whales are mammals and all mammals defecate, as do most animals.
All whales are mammals, all mammals are warm blooded. So all whales are warm blooded.
Yes, most all mammals do. They have to to survive and create more killer whales.
All whales are mammals, and all mammals are warm-blooded
Yes, they do. Whales are marine mammals, and all mammals are vertebrates.
All whales are mammals. As are dolphins as well.
No all whales are mammals.
Yes, beluga whales are vertebrates.
Yes. All mammals are. Blue whales maintain a core body temperature somewhere between about 36.6 degrees C and 37.2 degrees C (98-99 degrees F). This temperature is similar to that of other large mammals.
Belugas, like all whales are mammals. And all mammals are warm blooded.
Yes, aquatic placental mammals inhabit all the world's oceans. Most of these are whales and seals.